Rare exoplanet 39 EP
Kepler-139 e
RA 282.3919° · Dec 43.8894° · exoplanet
Score breakdown
· 5 badgesRare 46 pts → Epic
- Richly packed system +14
- Distant (>1000 ly) +10
- Multi-planet system +6
- Confirmed exoplanet +5
- Gas giant +4
Total score 39
7 more points to reach Epic.
Badges
- Confirmed exoplanet · +5
- Gas giant · +4
- Multi-planet system · +6
- Richly packed system · +14
- Distant (>1000 ly) · +10
Trivia
What makes it special
- Packed system. Crammed into a system of five or more planets.
Could we get there?
- Verdict. Impossible with our current technology — and the next millennium of it.
Getting there
- Aboard Voyager 1. ≈ 22.4 million years at Voyager 1's speed (17 km/s).
- Fastest probe ever. ≈ 2 million years even at the Parker Solar Probe's 192 km/s.
- At 10% light speed. ≈ 12.8 thousand years in a starship at a tenth of light speed.
- Distance. 1275 light-years from Earth.
Look-back time
- Look-back time. The light you'd see left around the year 751.
Saying hello
- Say hello. A radio message and its reply would take 2551 years round-trip.
Standing on it
- A year here. A full year lasts about 5.6 Earth years.
By the numbers
- Size. About 13.7× the width of Earth.
- Volume. About 2571 Earths could fit inside it.
- Mass. Roughly 378× Earth's mass — about 1.2 Jupiters.
- Your weight. You'd weigh about 2.0× your Earth weight standing here.
- Density. Less dense than water — drop it in a big enough ocean and it would float.
- Temperature. A frigid -119°C — colder than dry ice.
How we found it
- Discovery. Found by W. M. Keck Observatory using the radial velocity method.
Cosmic context
- Crowded system. One of at least 5 planets orbiting its star.
Properties
- density gcc
- 0.808
- discovery facility
- W. M. Keck Observatory
- discovery method
- Radial Velocity
- dist ly
- 1275.3939
- eccentricity
- 0.0131
- eq temp k
- 154.06
- insolation
- 0.0991
- mass earth
- 378
- name
- Kepler-139 e
- orbital period days
- 2047.6354
- radius earth
- 13.7
- sys num planets
- 5